US3691790A - Couplings - Google Patents
Couplings Download PDFInfo
- Publication number
- US3691790A US3691790A US144614A US3691790DA US3691790A US 3691790 A US3691790 A US 3691790A US 144614 A US144614 A US 144614A US 3691790D A US3691790D A US 3691790DA US 3691790 A US3691790 A US 3691790A
- Authority
- US
- United States
- Prior art keywords
- parts
- grooves
- pair
- tubular part
- tubular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
Definitions
- the other part is coaxially I mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions. Moreover, there is formed in each pair of opposed and complementary surfaces a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and a single ball is accommodated at the point of intersection of each pair of grooves; the ball having a diameter substantially equal to the diameter of the grooves.
- the object of the invention is to provide such a coupling in a convenient form.
- a coupling for transmitting rotary motion between two parts whilst permitting relative axial movement between the said parts is characterized in that one of the parts is tubular and has therein segmental portions providing a plurality of angularly spaced surfaces which lie substantially in planes which are radially disposed with respect to the axis of the tubular part and the other part is co-axially mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions, each pair of opposed and complementary surfaces having formed therein respectively a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and accommodate at their point of intersection a single ball of a diameter substantially equal to the diameter of the grooves.
- a driving shaft 10 a part of which is shaped to the cross-section illustrated so to provide three surfaces 11 which are located respectively in three equi-angularly spaced planes which are substantially radial with respect to the axis of rotation of the shaft 10.
- the driven part of the coupling comprises a tubular portion 9 in which are mounted three equi-angularly spaced segments 12, the segments having external female splines 13 for the reception of male splines on the interior of the tubular portion.
- Each segment 12 has a surface 14 which is opposed to one of the surfaces 11 respectively and extends in a plane which is substantially radially disposed with respect to the axis of rotation of the shaft 10 and the co-axial tubular portion 9.
- each pair of opposed grooves 15,16 is accommodated a single ball 17 of a diameter substantially equal to the common diameter of the grooves.
- a coupling for transmitting rotary motion between. two parts while permitting relative axial movement between the said parts characterized in that one of the parts is tubular and has therein segmental portions providing a plurality of angularly spaced surfaces which lie substantially in planes which are radially disposed with respect to the axis of the tubular part and the other part is co-axially mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions, each pair of opposed and complementary surfaces having formed therein respectively a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and accommodate at their point of intersection a single ball of a diameter substantially equal to the diameter of the grooves.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A coupling for transmitting rotary motion between two parts while permitting relative axial movement between the parts wherein one of the parts is tubular. The tubular part contains segmental portions providing a plurality of angularly spaced surfaces which lie substantially in planes which are radially disposed with respect to its axis. The other part is co-axially mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions. Moreover, there is formed in each pair of opposed and complementary surfaces a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and a single ball is accommodated at the point of intersection of each pair of grooves; the ball having a diameter substantially equal to the diameter of the grooves.
Description
United States Patent Simister 51 Sept. 19, 1972 [S4] COUPLINGS [72] Inventor: Harry Simister,Olton,Solihull,Warwickshire, England 731 Assignee; jeee h Lucas (Industries) Ltd.,
Birmingham, England [22] Filed: May 18, 1971 [2]] Appl. No.: 144,614
521 u.s.c1. ..64/23,64/2l,64/23.7 511 1111. c1 ..Fl6d 3/06 [58] FieldofSearch ..64/21,23,23.7
[56] References Cited UNITED STATESYPATENTS 2,578,763 12/1951 1 Trbojerich ..64/2l 2,908,152 10/1959 Anderson ..64/23 2,952,145 9/1960 Thompson ..64/23.7 3,083,548 4/1963 Zeidler ..64/2l Primary Examiner-Kenneth W. Sprague Attorney-Holman & Stern [57] ABSTRACT A coupling for transmitting rotary motion between two parts while permitting relative axial movement between the parts wherein one of the parts is tubular. The tubular part contains segmental portions providing a plurality of angularly spaced surfaces which lie substantially in planes which are radially disposed with respect to its axis. The other part is coaxially I mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions. Moreover, there is formed in each pair of opposed and complementary surfaces a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and a single ball is accommodated at the point of intersection of each pair of grooves; the ball having a diameter substantially equal to the diameter of the grooves.
1 Claim, 1 Drawing Figure PATENTEDSEPIQ m2 INVENTOR /4agf)/M1@%m ORNEYS COUPLINGS This invention relates to couplings for transmitting rotary motion from one part to another part whilst permitting limited relative axial movements between the two parts.
The object of the invention is to provide such a coupling in a convenient form.
According to the invention a coupling for transmitting rotary motion between two parts whilst permitting relative axial movement between the said parts, is characterized in that one of the parts is tubular and has therein segmental portions providing a plurality of angularly spaced surfaces which lie substantially in planes which are radially disposed with respect to the axis of the tubular part and the other part is co-axially mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions, each pair of opposed and complementary surfaces having formed therein respectively a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and accommodate at their point of intersection a single ball of a diameter substantially equal to the diameter of the grooves.
In the accompanying drawing sufficient of an example of the invention is shown in perspective for an understanding of the invention.
Referring to the drawing, there is provided a driving shaft 10, a part of which is shaped to the cross-section illustrated so to provide three surfaces 11 which are located respectively in three equi-angularly spaced planes which are substantially radial with respect to the axis of rotation of the shaft 10.
The driven part of the coupling comprises a tubular portion 9 in which are mounted three equi-angularly spaced segments 12, the segments having external female splines 13 for the reception of male splines on the interior of the tubular portion. Each segment 12 has a surface 14 which is opposed to one of the surfaces 11 respectively and extends in a plane which is substantially radially disposed with respect to the axis of rotation of the shaft 10 and the co-axial tubular portion 9.
In the surfaces 11 respectively are three longitudinal and semi-circular grooves 15, whilst in the surfaces 14 are longitudinal and semi-circular grooves 16. The grooves 15 and 16 are oppositely inclined at a small angle to the axis of the shaft 10, and at the point of intersection of each pair of opposed grooves 15,16 is accommodated a single ball 17 of a diameter substantially equal to the common diameter of the grooves.
In use, rotation of the shaft 10 will be imparted through the balls 17 to the segments 12 and hence to the tubular portion 9. At the same time axial movement of the shaft 10 relative to the segments 12, or vice versa, is permitted, due to the equal and opposite inclination of the grooves. Moreover, due to the opposite inclinations of the grooves no means is required to prevent the balls from escaping from the grooves provided the relative axial movement between the shaft 10 and segments 12 is suitably limited.
lclaim:
l. A coupling for transmitting rotary motion between. two parts while permitting relative axial movement between the said parts, characterized in that one of the parts is tubular and has therein segmental portions providing a plurality of angularly spaced surfaces which lie substantially in planes which are radially disposed with respect to the axis of the tubular part and the other part is co-axially mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions, each pair of opposed and complementary surfaces having formed therein respectively a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and accommodate at their point of intersection a single ball of a diameter substantially equal to the diameter of the grooves.
Claims (1)
1. A coupling for transmitting rotary motion between two parts while permitting relative axial movement between the said parts, characterized in that one of the parts is tubular and has therein segmental portions providing a plurality of angularly spaced surfaces which lie substantially in planes which are radially disposed with respect to the axis of the tubular part and the other part is co-axially mounted within the tubular part and has a plurality of angularly spaced surfaces which are opposed and complementary to the surfaces on the segmental portions, each pair of opposed and complementary surfaces having formed therein respectively a pair of substantially semi-circular and longitudinally extending grooves which are oppositely inclined at substantially equal angles to the axis of the tubular part and accommodate at their point of intersection a single ball of a diameter substantially equal to the diameter of the grooves.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14461471A | 1971-05-18 | 1971-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3691790A true US3691790A (en) | 1972-09-19 |
Family
ID=22509374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US144614A Expired - Lifetime US3691790A (en) | 1971-05-18 | 1971-05-18 | Couplings |
Country Status (1)
Country | Link |
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US (1) | US3691790A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5893801A (en) * | 1996-11-04 | 1999-04-13 | Ford Motor Company | Segmented cross groove plunging constant velocity joint |
-
1971
- 1971-05-18 US US144614A patent/US3691790A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5893801A (en) * | 1996-11-04 | 1999-04-13 | Ford Motor Company | Segmented cross groove plunging constant velocity joint |
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